Harvard Sleep Scientists Publish Peer-Reviewed Study in Frontiers in Sleep Showing Benefits of LUSOMÉ Sheets for Hot Sleepers

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CALGARY, Alberta--(BUSINESS WIRE)--Dec 3, 2025--

Overheating during sleep affects sleep quality, with up to 41% of adults experiencing disrupted rest from overheating and night sweats. This challenge is especially pronounced for women in the menopausal transition, where temperature-related sleep disturbance sharply reduces quality of life.

A new peer-reviewed study in Frontiers in Sleep, conducted by investigators at Brigham and Women’s Hospital and Harvard Medical School, found “significant improvements in sleep quality” among self-identified hot sleepers after switching to LUSOMÉ’s temperature-regulating bed sheets. The study associated LUSOMÉ sheets—100% cotton treated with Xirotex™ Cool—with longer, higher-quality sleep and a measurable reduction in night sweats.

“LUSOMÉ sheets are the first temperature-regulating smart textile to undergo clinical validation, showing benefits for maintaining optimal body temperature during sleep,” said Lara Smith, founder of LUSOMÉ. “With so many unsubstantiated ‘cooling’ claims, we’re raising the bar with peer-reviewed science.”

Study Findings
Design: Non-randomized, pre–post pilot study with within-person comparisons
Participants: 64 adults (89% female; mean age 48) identifying as hot sleepers
Duration: 6 weeks; 2,627 nights of data
Intervention: LUSOMÉ sheets treated with Xirotex™ Cool

Key Findings (as reported in the paper):
• +26 minutes average increase in nightly sleep duration
• Night sweats: Among those with baseline symptoms (75%), 33% saw symptoms eliminated; 42% reported reduced severity
• Heat-related sleep disruption: Trouble sleeping due to heat dropped from 82.5% to 39.7%
• Sleep quality: 69% reported improvement; mean PSQI score improved by 1.94 points (8.0 to 6.1)

Raising the Bar on ‘Cooling’ Claims
These findings suggest that curating the sleep micro-environment—bedding included—can support sleep for hot sleepers. The results point to a promising, non-pharmacologic option for improving sleep in people with vasomotor symptoms.

About LUSOMÉ
Founded by Lara Smith after witnessing her sister’s struggle with breast-cancer-related night sweats, LUSOMÉ develops evidence-based sleep technologies to restore women’s well-being. Its proprietary Xirotex™ smart-textile platform, validated in clinical research, powers bedding and sleepwear that support deeper rest. The brand also fosters education and community through The Sweaty Pillow podcast, a leading voice in women’s sleep and menopause. Learn more at lusome.com.

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CONTACT: Jill Lewis

Jill@jilllewis.me

416-710-4460

KEYWORD: NORTH AMERICA CANADA

INDUSTRY KEYWORD: LUXURY DEPARTMENT STORES HOME GOODS SCIENCE FAMILY CONSUMER TEXTILES HEALTH SPECIALTY OTHER SCIENCE FASHION MANUFACTURING RETAIL OTHER HEALTH WOMEN SENIORS ONLINE RETAIL

SOURCE: LUSOMÉ

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PUB: 12/03/2025 08:00 AM/DISC: 12/03/2025 08:03 AM

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